單極電圖在電生理標(biāo)測(cè)中的應(yīng)用-資料下載頁(yè)
2024-09-29 12:23本頁(yè)面
【導(dǎo)讀】單極電圖在電生理標(biāo)測(cè)中的應(yīng)用。浙江大學(xué)醫(yī)學(xué)院附屬邵逸夫醫(yī)院心內(nèi)科。單極電圖產(chǎn)生的基本原理。當(dāng)記錄到單個(gè)激活細(xì)胞的跨膜動(dòng)。.相對(duì)于遠(yuǎn)處的參考電極，在電。因?yàn)榧?dòng)傳導(dǎo)是細(xì)胞到細(xì)胞，的電壓信號(hào)，同時(shí)包括近場(chǎng)與遠(yuǎn)場(chǎng)信號(hào)成分。，同時(shí)刪除了常見(jiàn)噪音與遠(yuǎn)場(chǎng)信號(hào)。單極電圖雙極電圖。辨率且不受激動(dòng)傳導(dǎo)方向的影響。錄中，兩個(gè)相關(guān)電極的方向與激動(dòng)傳導(dǎo)的方。向存在最大的沖突。1)為消融提供準(zhǔn)確的靶點(diǎn)定位。2)在特殊的位點(diǎn)顯示出特征性形態(tài)。3)雙極信號(hào)是從遠(yuǎn)端電極與近端電極之間得到，不能評(píng)估電極-組織貼靠。4)振幅的調(diào)整需要依靠信號(hào)的dV/dt信息，這。樣導(dǎo)致低頻信息完全丟失。單極標(biāo)測(cè)的臨床用途。代表激動(dòng)波陣到達(dá)。從健康組織傳入從深部或病變組織傳入。從病變或深部傳出。非缺血性心肌病室速患者不同程度的涉及。–單極標(biāo)測(cè)幫助明確心肌病變是否可逆。單極心內(nèi)膜標(biāo)測(cè)可以反映大多數(shù)非缺血性心肌病外膜雙極標(biāo)。測(cè)正常的心律失常的基質(zhì)
【正文】 signals on the epicardial map, which is consistent with fat. On the endocardial unipolar voltage map (C), there is a large area of voltage abnormality ( mV) that occupies % of the total LV endocardial surface area. LVEF = left ventricular ejection fraction。 other abbreviations as in Figures 1 and 4. Figure Legend: // Date of download: 4/10/2020 Copyright 169。 The American College of Cardiology. All rights reserved. From: New Unipolar Electrogram Criteria to Identify Irreversibility of Nonischemic Left Ventricular Cardiomyopathy J Am Coll Cardiol. 2020。60(21):21942204. doi:LV Electroanatomical Voltage Maps From a Patient With Reversible VPDInduced LVCM (LVEF: 35% at Procedure) The bipolar endocardial map exhibited no area of voltage abnormality. The unipolar endocardial map exhibited a small area of voltage abnormality ( mV) that occupied a % of the total LV endocardial surface area. VPD = ventricular premature depolarization。 other abbreviations as in Figures 1, 4, and 5. Figure Legend: // THANK YOU FOR YOUR ATTENTION
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